.breadcrumb-enter-active,
.breadcrumb-leave-active{
  transition: all 0.5s;
}

.breadcrumb-enter-form, /* 进入之前的状态 */
.breadcrumb-leave-active /* 离开之后的状态的状态 */
{
  opacity: 0;
  transform: translateX(20px);
}



.breadcrumb-leave-active {
  position: absolute;
}



.fade-transition-enter-active,
.fade-transition-leave-active {
  transition: all .5s;
}

.fade-transition-enter-from {
  opacity: 0;
  transform: translateX(-30px);
}

.fade-transition-leave-to {
  opacity: 0;
  transform: translateX(30px);
}